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From: Tejun Heo <tj@kernel.org>
To: Dave Chinner <david@fromorbit.com>
Cc: linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org,
	xfs@oss.sgi.com
Subject: Re: [2.6.36-rc3] Workqueues, XFS, dependencies and deadlocks
Date: Wed, 08 Sep 2010 12:28:40 +0200	[thread overview]
Message-ID: <4C876558.4050301@kernel.org> (raw)
In-Reply-To: <20100908101222.GY705@dastard>

Hello,

On 09/08/2010 12:12 PM, Dave Chinner wrote:
> Ok, so in this case if this was on CPU 1, I'd see kworker[1:0],
> kworker[1:1] and kworker[1:2] threads all accumulate CPU time?  I'm
> just trying to relate your example it to behaviour I've seen to
> check if I understand the example correctly.

Yes, you're right.  If all three works just burn CPU cycles for 5ms
then you'll only see one kworker w/ 15ms of accumulated CPU time.

Thanks.

-- 
tejun

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WARNING: multiple messages have this Message-ID (diff)
From: Tejun Heo <tj@kernel.org>
To: Dave Chinner <david@fromorbit.com>
Cc: linux-kernel@vger.kernel.org, xfs@oss.sgi.com,
	linux-fsdevel@vger.kernel.org
Subject: Re: [2.6.36-rc3] Workqueues, XFS, dependencies and deadlocks
Date: Wed, 08 Sep 2010 12:28:40 +0200	[thread overview]
Message-ID: <4C876558.4050301@kernel.org> (raw)
In-Reply-To: <20100908101222.GY705@dastard>

Hello,

On 09/08/2010 12:12 PM, Dave Chinner wrote:
> Ok, so in this case if this was on CPU 1, I'd see kworker[1:0],
> kworker[1:1] and kworker[1:2] threads all accumulate CPU time?  I'm
> just trying to relate your example it to behaviour I've seen to
> check if I understand the example correctly.

Yes, you're right.  If all three works just burn CPU cycles for 5ms
then you'll only see one kworker w/ 15ms of accumulated CPU time.

Thanks.

-- 
tejun

  reply	other threads:[~2010-09-08 10:28 UTC|newest]

Thread overview: 37+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-09-07  7:29 [2.6.36-rc3] Workqueues, XFS, dependencies and deadlocks Dave Chinner
2010-09-07  7:29 ` Dave Chinner
2010-09-07  9:04 ` Tejun Heo
2010-09-07  9:04   ` Tejun Heo
2010-09-07 10:01   ` Dave Chinner
2010-09-07 10:01     ` Dave Chinner
2010-09-07 10:35     ` Tejun Heo
2010-09-07 10:35       ` Tejun Heo
2010-09-07 12:26       ` Tejun Heo
2010-09-07 12:26         ` Tejun Heo
2010-09-07 13:02         ` Dave Chinner
2010-09-07 13:02           ` Dave Chinner
2010-09-08  8:22         ` Dave Chinner
2010-09-08  8:22           ` Dave Chinner
2010-09-08  8:51           ` Tejun Heo
2010-09-08  8:51             ` Tejun Heo
2010-09-08 10:05             ` Dave Chinner
2010-09-08 10:05               ` Dave Chinner
2010-09-08 10:05               ` Dave Chinner
2010-09-08 14:10               ` Tejun Heo
2010-09-08 14:10                 ` Tejun Heo
2010-09-07 12:48       ` Dave Chinner
2010-09-07 12:48         ` Dave Chinner
2010-09-07 15:39         ` Tejun Heo
2010-09-07 15:39           ` Tejun Heo
2010-09-08  7:34           ` Dave Chinner
2010-09-08  7:34             ` Dave Chinner
2010-09-08  8:20             ` Tejun Heo
2010-09-08  8:20               ` Tejun Heo
2010-09-08  8:28               ` Dave Chinner
2010-09-08  8:28                 ` Dave Chinner
2010-09-08  8:46                 ` Tejun Heo
2010-09-08  8:46                   ` Tejun Heo
2010-09-08 10:12                   ` Dave Chinner
2010-09-08 10:12                     ` Dave Chinner
2010-09-08 10:28                     ` Tejun Heo [this message]
2010-09-08 10:28                       ` Tejun Heo

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